fix: in operator handle empty array

langchain-ai · Nov 24, 2024 · 9970588 · 9970588
1 parent cb2c42c
commit 9970588
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/libs/langchain-community/src/vectorstores/prisma.ts b/libs/langchain-community/src/vectorstores/prisma.ts
@@ -437,6 +437,16 @@ export class PrismaVectorStore<
                   )}`
                 );
               }
+
+              if (value.length === 0) {
+                const isInOperator = OpMap[opNameKey] === OpMap.in;
+
+                // For empty arrays:
+                // - IN () should return FALSE (nothing can be in an empty set)
+                // - NOT IN () should return TRUE (everything is not in an empty set)
+                return this.Prisma.sql`${!isInOperator}`;
+              }
+
               return this.Prisma.sql`${colRaw} ${opRaw} (${this.Prisma.join(
                 value
               )})`;